A Euless man was arrested Tuesday in McKinney after making plans to meet what he thought was a 13-year-old for sex, according to the Collin County Sheriff's Office.

John Crumley

(Collin County Detention Center/

Collin County Detention Center

)

Instead, John Crumley was chatting with undercover investigators with the office's child exploitation unit. He faces a charge of online solicitation of a minor and is being held in the Collin County Detention Center in lieu of $20,000 bail.

According to a release, Crumley began chatting unknowingly with the investigators last Thursday, and arranged to meet for sex in the parking lot of a McKinney business.

"Sheriff [Jim] Skinner has given us very clear marching orders to aggressively pursue child predators," Chief Deputy Matt Langan said in the release. "Our deputies will continue to work around the clock to fulfill their mission to protect the children of Collin County and arrest those that seek to do them harm."